Colour glass shortpass filters
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Colour Glass Filters are polished sheets of special glass that have been cast with a dye. Colour Glass Filters generally are relatively cheap and very stable. The disadvantage with them is that they are only available in a relatively small number of variants, and so can be restrictive in shortwave selection.
Colour Glass filters are useful for selective wavelength absorption and therefor achieve high out of band blocking. Colour glass type Shortpass filters have very low transmission in long wavelengths and high transmission in the short wavelengths.
The Short-pass range of color glass filters listed here has uniform spectral transmission properties over their entire aperture. A wide range of shortpass Colour Glass shortpass filters are available as 50x50mm and 25mm diameter filters and listed below. We also supply customer colour glass filters in shapes and sizes to fir individual customer's requirements. For more information about our customer filters please contact our technical sales team.
|Diameter:||+0.0 / -0.20 mm|
|Length / width:||± 0.20 mm|
|Thickness:||>± 0.20 mm|
|Surface quality:||<60-40 scratch/dig|
Wavelength cut-off listed in table is transition cut-on wavelength (T=Tmax/2)
Wavelength cut-on listed in table is transition cut-off wavelength (T=Tmax/2)
Polyester shortpass filters
Polyster shortpass filter sets
Wratten shortpass filters
Wratten shortpass filter sets
Dichroic shortpass filters
Dichroic beamsplitters shortwave reflecting filters (45° AOI)
Dichroic beamsplitters shortwave reflecting filter sets (45° AOI)
Mounted dichroic beamsplitters shortwave reflecting filters (45° AOI)
Hot mirrors 0° (standard type)
Hot mirrors 0° (UV type)
KG1 heat glass filters
- Mounting of diameters and squares.
- Antireflective coatings can be applied to one or both faces for improved transmission.
- Cutting down or edged to special shapes and sizes at short notice.
- Larger sheets available for larger custom sizes.
- Available in sets, supplied in a wooden storage box for research and laboratory use.
|Part No.||Wavelength cut-off (nm)||Wavelength cut-on (nm)||Equivilent material||Colour||Diameter|
|464FCS2500 Download||465||720||BG3||Deep blue- UV transmitting||25||1||£16.50|
|465FCS2500 Download||465||720||BG3||Deep blue- UV transmitting||25||3||£16.50|
|465FCS5050 Download||465||720||BG3||Deep blue- UV transmitting||50||50||3||£32.90|
|538FCS2500 Download||538||735||Hoya B-410||Bright blue- UV transmitting||25||3||£23.50|
|538FCS5050 Download||538||735||Hoya B-410||Bright blue- UV transmitting||50||50||3||£52.50|
|575FCS2500 Download||575||1880||BG39||Bright blue- strongly absorbs red/NIR||25||3||£16.50|
|575FCS5050 Download||575||1880||BG39||Bright blue- strongly absorbs red/NIR||50||50||3||£32.90|
|611FCS2500 Download||610||1770||BG38||Pale blue- absorbs red/NIR||25||3||£16.50|
|611FCS5050 Download||610||1770||BG38||Pale blue- absorbs red/NIR||50||50||3||£32.90|
|662FCS2500 Download||662||3200||KG3||IR absorbing-un-toughened||25||3||£16.50|
|668FCS2500 Download||668||3200||KG5||IR absorbing-un-toughened||25||3||£16.50|
|668FCS5050 Download||668||3200||KG5||IR absorbing-un-toughened||50||50||3||£32.90|
|716FCS2500 Download||716||3200||KG1||IR absorbing- toughened||25||3||£16.50|
|716FCS5050 Download||716||3200||KG1||IR absorbing- toughened||50||50||3||£32.90|